Fix warning in g_object_ref (NULL)
Fix warning in g_object_ref (NULL)

Distrotech/pango,Distrotech/pango,danny-ku/pango,Distrotech/pango,kari-lentz/alpha-pango,kari-lentz/alpha-pango,danny-ku/pango,kari-lentz/alpha-pango,kari-lentz/alpha-pango,danny-ku/pango